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ORCAS Quantum Cascade Laser Spectrometer (QCLS) DUAL CO CH4 N2O


The Quantum Cascade Laser Spectrometer (QCLS) DUAL measured CO, CH4, and N2O concentrations in situ aboard the NSF/NCAR GV HIAPER (Gulfstream-V High-performance Instrumented Airborne Platform for Environmental Research) aircraft (Tail Number N677F) during the ORCAS (O2/N2 Ratio and CO2 Airborne Southern Ocean Study) campaign. This dataset contains CO_QCLS, CH4_QCLS, N2O_QCLS data in NASA Ames format collected during ORCAS.

Data access

  • ORDER data for delivery by FTP
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Additional information

Data Quality final
  • 0.1 (2016-03-16)
  • 0.2 (2016-09-13):

    qaqc data

  • 1.0 (2017-02-08):

    Final release data. No changes from the previous version were required as qaqc data are appropriate for release.

  • 1.1 (2017-03-17):

    This version has been updated to the most recent versions of QCLS DUAL data for test flights TF01 and TF02.

(Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Related projects
Spatial Type point
Frequency 1 second
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2016-01-05 00:00:00
End datetime 2016-02-29 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: -30.00, Minimum (South) Latitude: -80.00
Minimum (West) Longitude: -105.00, Maximum (East) Longitude: -30.00

Primary point of contact information

EOL Data Support <>

Additional contact information


Kort, E., et al. 2017. ORCAS Quantum Cascade Laser Spectrometer (QCLS) DUAL CO CH4 N2O. Version 1.1. UCAR/NCAR - Earth Observing Laboratory. Accessed 28 May 2024.

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